Move to more PSR-4 standards.

lib/OpenPgP/CompressedDataPacket.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace Leenooks\OpenPGP;
+
+/**
+ * OpenPGP Compressed Data packet (tag 8).
+ *
+ * @see http://tools.ietf.org/html/rfc4880#section-5.6
+ */
+class CompressedDataPacket extends Packet implements \IteratorAggregate, \ArrayAccess
+{
+	protected $tag = 8;
+	public $algorithm;
+
+	/* see http://tools.ietf.org/html/rfc4880#section-9.3 */
+	static $algorithms = [
+		0 => 'Uncompressed',
+		1 => 'ZIP',
+		2 => 'ZLIB',
+		3 => 'BZip2',
+	];
+
+	// IteratorAggregate interface
+
+	function getIterator()
+	{
+		return new \ArrayIterator($this->data->packets);
+	}
+
+	// ArrayAccess interface
+
+	function offsetExists($offset) {
+		return isset($this->data[$offset]);
+	}
+
+	function offsetGet($offset) {
+		return $this->data[$offset];
+	}
+
+	function offsetSet($offset, $value) {
+		return is_null($offset) ? $this->data[] = $value : $this->data[$offset] = $value;
+	}
+
+	function offsetUnset($offset) {
+		unset($this->data[$offset]);
+	}
+
+	function body()
+	{
+		$body = chr($this->algorithm);
+
+		switch($this->algorithm) {
+			case 0:
+				$body .= $this->data->to_bytes();
+				break;
+
+			case 1:
+				$body .= gzdeflate($this->data->to_bytes());
+				break;
+
+			case 2:
+				$body .= gzcompress($this->data->to_bytes());
+				break;
+
+			case 3:
+				$body .= bzcompress($this->data->to_bytes());
+				break;
+
+			default:
+				/* @todo error? */
+		}
+
+		return $body;
+	}
+
+	function read()
+	{
+		$this->algorithm = ord($this->read_byte());
+		$this->data = $this->read_bytes($this->length);
+
+		switch($this->algorithm) {
+			case 0:
+				$this->data = OpenPGP\Message::parse($this->data);
+				break;
+
+			case 1:
+				$this->data = OpenPGP\Message::parse(gzinflate($this->data));
+				break;
+
+			case 2:
+				$this->data = OpenPGP\Message::parse(gzuncompress($this->data));
+				break;
+
+			case 3:
+				$this->data = OpenPGP\Message::parse(bzdecompress($this->data));
+				break;
+
+			default:
+				/* TODO error? */
+		}
+	}
+}